Why are these old screamo albums so expensive?

neil perry wasnt very popular...why are these so much money?!?!
also the khayembii communique. practically unheard of band...

http://www.amazon.com/Lineage-Situation-Neil-Perry/dp/B00009NH60/ref=sr_1_1?s=music&ie=UTF8&qid=1313975787&sr=1-1
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